Insteon_IOLinc: Add Message Types and Operating Flags

Made operating flags similar to message types in that they can be individually set for each class.
Insteon_IOLinc: Add Set and Get _Operating_Flags to Awaiting Ack

Both requests need to be acknowledged.
Insteon_IOLinc: Make Operating Flags Class Extendable

Allow each class to set its own flags.
Insteon_IOLinc: Add Ability to Decipher Get Operating Flags Message